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<H1 class="no-header">curs_delch 3x 2025-01-18 ncurses 6.5 Library calls</H1>
<PRE>
<STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>                   Library calls                  <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>




</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
       <STRONG>delch</STRONG>,  <STRONG>wdelch</STRONG>,  <STRONG>mvdelch</STRONG>,  <STRONG>mvwdelch</STRONG>  - delete a character from a <EM>curses</EM>
       window


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>

       <STRONG>int</STRONG> <STRONG>delch(void);</STRONG>
       <STRONG>int</STRONG> <STRONG>wdelch(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>);</STRONG>
       <STRONG>int</STRONG> <STRONG>mvdelch(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>);</STRONG>
       <STRONG>int</STRONG> <STRONG>mvwdelch(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>);</STRONG>


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       <STRONG>wdelch</STRONG> deletes the character at the cursor position in <EM>win</EM>.   It  moves
       all  characters to the right of the cursor on the same line to the left
       one position and replaces the contents of the rightmost position on the
       line  with  the  window's  background  character;  see  <STRONG><A HREF="curs_bkgd.3x.html">bkgd(3x)</A></STRONG> (wide-
       character API users: <STRONG><A HREF="curs_bkgrnd.3x.html">bkgrnd(3x)</A></STRONG>).  The cursor position does not  change
       (after  moving  to  (<EM>y</EM>,  <EM>x</EM>),  if specified).  <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG> describes the
       variants of this function.


</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
       These functions return <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure.

       In <EM>ncurses</EM>, they return <STRONG>ERR</STRONG> if <EM>win</EM> is <EM>NULL</EM>.

       Functions prefixed with "mv" first perform cursor movement and fail  if
       the position (<EM>y</EM>, <EM>x</EM>) is outside the window boundaries.


</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
       <STRONG>delch</STRONG>, <STRONG>mvdelch</STRONG>, and <STRONG>mvwdelch</STRONG> may be implemented as macros.

       A  terminal's  <STRONG>delete_character</STRONG>  (<STRONG>dch1</STRONG>)  capability  is not necessarily
       employed.


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       X/Open Curses Issue 4 describes these functions.  It specifies no error
       conditions for them.

       SVr4  describes  a  successful  return  value only as "an integer value
       other than <EM>ERR</EM>".


</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
       SVr2 (1984) introduced <EM>wdelch</EM>.


</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>



ncurses 6.5                       2025-01-18                    <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>
</PRE>
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<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-HISTORY">HISTORY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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